Cooking range door mounting



Nv' 30 1954 K. s. JENsoN 2,695,504

COOKING RANGE DOOR MOUNTINGA Filed may 23. 195o 2 sheets-'Sheet 1 Nov. 30, 1954 K. s. JENsoN COOKING RANGE DOOR MOUNTING 2 Sheets-Sheet 2 Filed May 23, 1950 INVENTO COOKING RANGE DOOR MOUNTING Kenneth S. Jenson, Wisconsin Rapids, Wis., assignor to Preway Inc., Wisconsin Rapids, Wis., a corporation of Wisconsin Application May 23, 1950, Serial No. 163,694

3 Claims. (Cl. 126-191) This invention relates to a hinge connection and a spring counterbalance for the door of a cooking range.

The main objects of this invention are `to provide an improved mounting for the door of a cooking range which is designed to swing between positions which are substan tially vertical and horizontal; to provide improved stop means for limiting the swing of the door to, and supporting it in, a horizontal open position; to provide improved counterbalancing means for yieldingly resisting opening movement of the door and facilitating the closing thereof; and to provide an improved hinge, stop, and couuterbalancing means of this kind whereby the door is swingably mounted on the range with but a single fastening means for each hinge connection.

A suggestive embodiment ofthis invention is set forth in the accompanying drawings wherein- Figure l is a front elevation of the open front of the cooking compartment of a range which is equipped with the present hinged door and counterbalancing spring therefor;

Fig. 2 is a fragmentary side elevation of the cooking compartment whose open door is shown in section;

Fig. 3 is a fragmentary vertical cross section, taken on line 3-3 of Fig. 1, the door being shown in its closed position;

Fig. 4 is a detail in section of the hinge mounting for the door which is shown in its open position;

Fig. 5 is a vertical elevational view, taken on `the plane .l

of line 5-5 of Fig.` 3; and

Fig. 6 is a detail in section, taken on line 6-6 of Fig. 4. The cooking range herein shown comprises a frame United States Patent C 8 mounting a vertically swinging oven door D with the t aid of a pair of hinge plates H, a spring S and a tension rod R.

The range frame 8 is conventional in that it provides for several compartments each having a front opening In the drawing wherewith is associated a suitable door. only so much of the frame 8 is shown as is necessary to illustrate an oven 9 with a bottom 10 and adjustable shelves 11 thereover and above a broiler compartment 12, the opening o of the oven being closed by a door D. At the front, laterally of each side of the opening o, the frame is slotted at 15 to receive therethrough one of the hinge plates H and also a stop arm A which cooperates therewith in a very special manner.

The door D may be of usual construction with sheet metal plates 17 and 18 in spaced relation and with an intervening stitener plate 19 which is marginally offset to provide a flange 20 for bonding to the plates 17 and 18. Each hinge plate H has its opposite ends transversely offset, and one of its ends is forked to provide spaced ears 21 and 22. The stop arms A extend arcuately and each is joined to an elongated base 23 one end of which laps the ear 21 of the hinge plate H to be connected thereto by a pivot pin 24. At its opposite end the hinge plate is apertured to receive a fastener, as `will be presently described, along one side it is also provided with a transversely extending lug 25, and beyond its extremity there is further extended a lug 26 ending in a laterally turned flange 27.

Each stop arm base 23 is positioned interiorly of the door D between the plates 17 and 18 along one side of the stiener plate 19. Near its opposite ends each base 23 is formed with laterally turned ears 28 and 29 the former of which is provided with a hook 30 which engages an offsetting corner of the stifrener plate 19 (see Fig. 5). 'Ihe other ear 29 overlies the stiffener plate at 2,695,604 Patented Nov. 30, 1954 a point adjacent one edge of the door D. The inner extremity of the base 23 of the stop arm A is pivotally connected to the ear 21 of the hinge plate H by the pin 24 already described.

Each stop arm A which is concentric with the pivot pin 24 traverses a fixed arcuate path closely adjacent its associated hinge plate H. The outer end of the arcuate stop arm A is provided with a radial shoulder 33 which engages the lug 25 to limit outward swinging of the door D and hold it rmly in its horizontally disposed position.

The counterbalancing spring S may be of the coiled tension type having at one end a hook 35 for engaging a stud 36 attached to the stop arm A near its free end, and with a hook 37 at its opposite end for connection with the tension rod R. Near one end this rod is bowed outwardly at 39 and then terminates in a transversely extending loop 40. The rod bow 39 is extended through an aperture 41 in the base of the stove frame 8 so as to present its terminal loop inwardly thereof opposite the lower end of the spring S with whose hook 37 it is engaged. At its upper end the rod R is angled forwardly at 42 for confinement behind a ilange 43 extending vertically from the frame 8 where its extremity is free to seat in a socket 4S in a horizontal flange 46 on the frame, thereby to secure the tension rod R in a fixed position. The spring S is by this means maintained under tension when secured to the stud 36.

When each hinge plate H is operatively positioned, its ear 22 which is shouldered engages an upstanding ledge 51 at the bottom of the slot 15, and its laterally turned flange 27 at the top engages a slot 52 in an inner side of the frame 8. Only a single fastening means is then required to operatively secure each assembly of hinge plate H, stop arm A, and counterbalancing spring S, and this may take the form of a screw 53 which is entered through an aperture 54 in the hinge plate H near its top to engage with a tapped hole 55 in the frame 8.

The spring S is maintained under tension to exert a counterbalancing force on the stop arm A and therethrough upon the door as well, so long as the angled end of the tension rod R remains confined in place. When pushed outwardly from behind the ilange 43 it is free to swing forwardly thereby to relax the spring S to the point, if need be, of permitting its disconnection from the associated parts preliminary to disassembly thereof and removal of the door from its mounting on the range. The tension rod is, in effect, a bell crank lever fulcrumed to rock and slide on the frame, and because of the ratio in the leveragelexerted on the spring, it has a capacity for readily tensioning a powerful spring when the assembly operation is being performed. One such springwill probably sullice as a counterbalance for the ordinary door, but if necessary each hinge plate-stop arm assembly may include a spring S to enhance the tension force of the counterbalance therefor.

In the construction described, each hinge plate H extends downwardly and forwardly to carry at its lower end in front of the frame 8 the pivot pin 24 which constitutes one of the hinges for the door D. The entire load imposed by the door is thereby transmitted through the hinge plate to the frame 8. The lug 27 at its top, when engaged with the slot 52, holds the hinge plate against rotative movement when the door D is operated to open or closed position. The screw 5.3 is relied upon not to withstand the door load, but to hold the hinge plate in a fixed position on the frame where the ears 21 and 22 and lug 27 are effective to resist all strains.

The hinge plates H are so mounted on the frame as to cooperate effectively with the stop plates A when the radial shoulders 33 thereof are brought into engagement with the lugs 25 (see Fig. 4). When so engaged, each hinge plate H is prevented from tilting in response to the force transmitted thereto from the stop plate A; by reason of the engagement of the lug 27 with the slot 52 the hinge plate is held against forward movement at its top, and at its lower end the shouldered ear 22 engaging with the slot 15 prevents movement of the hinge plate either inwardly or outwardly of the frame so as to maintain the axes of the pins 24 in the xed position shown. There is furthermore an extended anchorage Of the base 23 Within the door itself so as to reinforce the latter out- ...1. v n we. 1.-. W

. .-6 Y wardly Vr11 1ts hinge rocking or sliding movements relative thereto, screw edges where the stop, plates are'engaged with thehinge each screw means having its axis in parallelism with the platesosfto beamplyfsiistiriedlinal'ldri ital posi 'on. u door hinge connection and in threaded connection with l i f the frame to releasably maintain each hinge plate in operative engagement 'therewith and an arm in xed eng'agem'entwinrthehin a q door is stiffened in a radial direction along its opposite Name l t grat www fe l sters inf/the frame zgnzfssss Beweisen Y Au r2, ""esdlfgagl 125547372 Reeves Away-19151 

